Water Level Sensor

Water Level Sensor

This is a simple project using the gen4-uLCD-43DT that measures water level in a container by using an external circuit composed of transistors, resistors and some jumper wires.

DIABLO16 in gen4-uLCD-43DT is used as the main Processor in this project. The module’s GPIO pins are utilised with the aid of the gen4-PA Board and FFC cable. Genie Magic environment was used in creating this project. This enables the LCD to act as a stand-alone device and thus not requiring an extra MCU such as an Arduino to process signals.

How it Works

Components

• gen4-uLCD-43DT module

• BC547 Transistor or equivalent

• Resistors

• gen4-PA Board

• FFC Cable

• uSD Card

• Micro USB Cable

• Connecting Wires

• Tank (water container)

Implementation

Step 1: Build

The following circuit was used for the project. This circuit design is from www.electroschematics.com.

If you are using gen4-PA board, connect the display to the PC like the image below.

Step 2: Program

Download the project file here.

You can download Workshop 4 IDE and the complete code for this project from our website.

Open the project using Workshop 4. This project uses the Visi-Genie Magic Environment.

You can modify the properties of each widget.

Step 3: Build

Connect the display to the PC using uUSB-PA5 and a mini USB cable. Make sure that you are connected to the right port. Red Button indicates that the device is not connected, Blue Button indicates that the device is connected to the right port.

Now click on the “(Build) Copy/Load” button.

Workshop 4 will prompt you to select a drive to copy the image files to a uSD Card. After selecting the correct drive, click OK.

Step 4: Mount uSD Card

The module will prompt you to insert the uSD card.

Properly unmount the uSD Card from the PC and insert it to the uSD Card slot of the display module. The image below must appear on your display after completing the steps above.

Demonstration

Flowchart